Carl edvard hauling



CARL EDVARD I-IARLING, OF NEW YORK, N. Y.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 611,479, dated September 27, 1898. Application 'inea Jimmy 29, 189s. serai No. 668,446. (ramada.)

To all whom it may concern.-

Be it known that I, CARL EDVARD HAR- LING, a citizen of the United States, residing at New York, (Brooklyn,) in the county of Kings and State of New York, have invented certain new and useful Improvements in Nut- Locks and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to nut-locks, and is especially designed for use upon wagons, carriages, and vehicles of a similar character; but, as will be made apparent in the course of the ensuing description, the improved device may be utilized at any point, according as the various uses may suggest themselves to the mind.

The principal aim of this invention is to provide a nut having an automatic catch for engaging the axle-spindle or bolt to which the nut is applied, the said catch being so arranged as to be engaged and operated by the wrench which is used to apply and remove the nut.

To this end the invention consists in an improved nut-lock and operating means em-` bodying certain novel features and details of construction and arrangement of parts, as hereinafter particularly set forth, illustrated in the drawings, and incorporated in the claims.

In the accompanying drawings, Figure 1 is a perspective view of a nut constructed in accordance with the present invention. Fig. 2 is a detail perspective view of the threaded end portion of an axle-spindle or bolt adapted to receive the improved nut. Fig. 3 is a longitudinal section through an axle, showing the nut applied thereto and also showing the wrench in section applied thereto. Fig. 4 is a cross-section through the same parts. Fig. 5 is an inner face view of the nut, showing the form and location of the spring-actuated catch in dotted lines. Fig. 6 is a detail perspective view of the wrench used in connection with the improved nut.

Similar numerals of reference designate corresponding parts in the several figures of the drawings.

The nut to which the improved lock is applied resembles an ordinary wagon or carriage axle nut, being shown for convenience as having a rectangular wrench-,engaging portion l and-the annular iiange 2, which ordinarily abuts against the outer end of the wheel-hub.

In carrying out the present invention the flange 2 is made sufficientlythick to enable a segmental cavity 3 to be formed therein, the ends of said cavity being expanded or enlarged, as indicated at 4. Within the cavity 3 is arranged a curved leaf-spring 5, one end of which is providedwith an eye resting in one of the widened ends of the cavity and secured iixedly by means of a binding-screw 6. The opposite or free end of the spring is also expanded and has projecting laterally therefrom a stud' 7, which projects through and Works in a radial slot 8, opening out at the outer or front side of the flange 2 of the nut.

The free end` of the spring 5 has pivotally connected 'thereto a catch 9, which extends radially inward th rough a radial extension 10 of the cavity 3, communicating with the bore of the nut. The projecting or inner end of the catch is beveled off at one side and is adapted to engagewith saw-shaped teeth 11, formed by cutting depressions in the outer surface of the axle-spindle or bolt to which the nut-lock is applied. By reason of the teeth having one edge disposed radially and the other edge obliquely the nut may be rotated in one direction upon the axle, but will be prevented from being turned backward by reason of such teeth engaging in a manner that will be readily understood.

The stud 7 projects through the slot 8 sufficiently beyond the outer surface of the iiange 2 to be engaged by a specially-constructed wrench 12, comprising a-handle 13 and a square nut-engaging portion 14, which is oftset from the handle or located in a plane parallel to but at one side of said handle.. The portion 14 of the wrench is provided in each side and about centrally of the outer surface of each side with notches 15, which are substantially semicircular in cross-section, as shown in Fig. 6, and the floors of which are inclined. The thickness o f each side of the portion 14 of the wrench is in excess of the distance between the outer surface of the wrench-engaging portion l of the nut and the stud '7, while the deepest portion of the notch or groove 15 is just equal to or slightly less than such distance. By reason of this construction as the wrench is applied to the nut the floor or base of the groove or notch 15 acts upon the stud 7, so as to move said stud outward in the radial slot 8, thus lifting the catch 9 out of engagement with the teeth l1 of the axle-spindle or bolt, as the case may be. This being done, the nut may be turned either inward or outward, as desired, and when brought into the desired position the wrench is removed, thereby allowing the catch 9 to be forced inward by the tension of the spring 5, which carries said catch. The cavity 3 in the flange 2 may be formed in any convenient manner by starting the same inward from the periphery of the iange or by making the flange in two parts or providing the same with a removable plate or portion, so as to give access to the cavity and the parts located therein.

From the foregoing description it will be seen that the nut-lock is entirely automatic in action and that the nut cannot possibly work loose.

It will also be understood that changes in the form, proportion, and minor details of construction may accordingly be resorted to Without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described the invention, what is claimed as new is- 1. A nut consisting of a Wrench-engaging portion and a circumferential flange having a cavity therein, in combination with a spring mounted in said cavity, a catch carried by the free end of said spring, and a stud connected to said catch and projecting through and working in a radially-disposed slot in said flange, substantially as and for the purpose described.

2. A nut consisting of a wrench-engaging portion and a circumferential flange having a cavity therein, in combination with a spring located in said cavity and fixed at one end, a catch connected to the free end of said spring and working through a radial extension of said cavity and projecting into the bore of the nut, and a stud connected to said catch and projecting through and working in a radiallydisposed slot in said liange and located to one side of the plane of the wrench-engaging portion of the nut, substantially as described.

3. A nut consisting of a wrench-engaging portion and a circumferential flange having a segmental cavity therein, in combination with a curved leaf-spring having one end fastened in said cavity, a catch carried by the free end of said spring and Working through a radial extension of said cavity and projecting into the bore of the nut, and a stud connected to said catch and working through a radial slot in the flange and projecting at one side of the Wrench-engaging portion of the nut so as to be engaged by the wrench and for throwing the catch out of action, substantially as described.

In testimony whereof l affix my signature in presence of two witnesses.

CARL EDVARD HARLING.

Vitnesses:

JAMES W. REDMOND, THos. J. RnDMoND. 

